Keyboard tray



FIG. 1 is perspective view of a keyboard tray showing my new design;

FIG. 2 is an end elevational view of the keyboard tray of FIG. 1, the opposite end being a mirror image thereof;

FIG. 3 is a front elevational view of the keyboard tray of FIG. 1;

FIG. 4 is a rear elevational view of the keyboard tray of FIG. 1;

FIG. 5 is a top plan view of the keyboard tray of FIG. 1; and,

FIG. 6 is a bottom plan view of the keyboard tray of FIG. 1. 

The ornamental design for a keyboard tray, as shown and described. 